Use dependabot github token (#12562)

* Use dependabot github token

* Fix typo

.github/workflows/update-dependabot-pr.yml

@@ -14,28 +14,20 @@ permissions:
   contents: read
 
 jobs:
-  update-dependbot-pr:
+  update-dependabot-pr:
+    permissions:
+      contents: write
     runs-on: ubuntu-latest
     steps:
-      - uses: elastic/apm-pipeline-library/.github/actions/github-token@current
-        with:
-          url: ${{ secrets.VAULT_ADDR }}
-          roleId: ${{ secrets.VAULT_ROLE_ID }}
-          secretId: ${{ secrets.VAULT_SECRET_ID }}
-      - uses: elastic/apm-pipeline-library/.github/actions/setup-git@current
-        with:
-          username: ${{ env.GIT_USER }}
-          email: ${{ env.GIT_EMAIL }}
-          token: ${{ env.GITHUB_TOKEN }}
       - uses: actions/checkout@v4
-        with:
-          token: ${{ env.GITHUB_TOKEN }}
       - uses: actions/setup-go@v5
         with:
           go-version-file: go.mod
       - name: Update NOTICE.txt
         run: make notice
       - run: |
+          git config --global user.name 'dependabot[bot]'
+          git config --global user.email 'dependabot[bot]@users.noreply.github.com'
           git diff --exit-code NOTICE.txt || (git add NOTICE.txt && git commit -am "Update NOTICE.txt")
           git push